Robert l



v /U/m sk @m Y G THE GRAPHIC COPH OTO .-LlTH-39 8:44 PARK PLACE, N.Y.

@uiten tates jetmt @fitte ROBERT L. BEAM., or NEW YORK, N. Y.

Letters Patent No. 69,703, dated October 8, 1867.

IMPROVED WOODEN PAVEMENT.

To ALL wHoM rr MAY eoNcEaNyv Be it known that I, ROBERT L. BEAM, of the'city and State of New York, have invented new and useful VImprovements in Wooden Pavements; and I do hereby declare that the following is a'full and exact description thereof, reference being had to the aeeompanyingdrawings and to the letters of reference marked thereon.

The nature of my invention consistsv in a removable and replneable wooden pavement, when constructed by forming sections ofpavement by `fastening together wooden blocks by moans of iron spikes or wooden pins,

and wooden bands made of hickory or white oak timber, and interlocking the sections with each other so as e`e'ctually to prevent them from becoming displaced, and compelling them to support each other laterally, and

then grooving said sections so that they may be locked togetherA by removable and replacable keys, as will be i explained. 4

A represents the upper side of the section, consisting of seventeenV blocks. B represents the bottom side of the section, a, being rabbeted out for the band at its base, b'b, Sie., spikes or pins driven from the exterior sides towards the centre of the section, veryn'e'ari'the upper edge of the rabbet, and before the band is pnt on, as seen lin drawing C. Thc'spikes or pins should be long enough to penetrate the centre tier of blocks in the section. C represents the side of the section, showing where the spikes or pins are placed before putting on the band, and the groove or half diamond, with the timber or key temporarily affixed. D shows the end of the section with the band nailed on complete, and spliced as at c, in drawing B. The sections being put together by means of spikes or pins and bands, are then grocved around the centre in Ashape of a half diamond, the outer edge of said groovebeing the hypothenuse of a right-angled triangle. The pieces of timber temporarily aixed to the section, called keys, show the mode of interlocking the sections with each other. E represents a tier of sections laid transversely across thev street, the grooves or half diamonds matching each other. This groove is then keyed with a square piece of timber, d, made to fit it snugly, the key being also grooved at each end to correspond with its t fellow-section on each side.. c represents a continuous groove running entirely across .the street, and, in layingv down the adjoining tier of sections, breaking joints, as represented in drawing F. The groove between the tiers of sections is also keyed with fit-ting timbers from curb to curb, completely interlocking the sections with each other. G represents the face or upper side of a section suitable for sidewalk pavement. II represents the side view, and I the'end view ofthe same section complete, with band and groove similar to the sections used for paving streets. These sections are pnt together in all respects similar to those used for street pavement, with spikes or pins reaching to the centie of the blocks, bound with wooden bands at the base, and interlockcd with keys on all sides to keep them securely in their places. The blocks comprising the sections, before being used for that purpose, should be dipped into hot coal tar, or put through someother wood-preserving process, so as to prevent decay. The sections should then be set upon a base of plank covering the street or sidewalk, (properly graded,) which should also undergo a similar preserving process.

By using a key-bloek at any suitable part or place in the pavement,iwhich can be taken out, the keys of the v sections may then be withdrawn, and the pavement taken up or put down,`as, for instance, for repairs, or for laypipes, sewers, dto., inthe street.

What I claim as my invention, and desire to secure by Letters Patent, is- In the construction of wooden pavements theremovable andreplace'ahle notched keys for locking, in transverse directions, sections made of a series of blocks, spiked, grooved, and banded together, as herein described, Vso that the sectionsmay be taken up when pipes or sewers are to be laid in the street, and readily laid down again,` or for repairs, 4as set forth.

ROBERT L. REAM.

Witnesses:

T. G. CeNNoLLY, HENRY A. NeLEN, 

